Take-up mechanism for looms.



Patented May I, I900. A. D. EMERY.

TAKE-UP MECHANISM FOR LOOMS.

2 Sheets8heet I,

(Application filed Dec. 13, 1899.) (No Model.)

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No. 648,903. Patented May I, I900. A. D. EMERY.

TAKE-UP MECHANISM FOR LOOMS.

(Application filed Dec. 13, 1899.} (No Model. 2 Sheets-Sheet 2.

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UNITED STATES PATENT, OFFICE.

'AliRAM D. EME RY, OF TAUNTON, MASSACHUSETTS, ASS IGNOR TO THE DRAPER COMPANY, OF PORTLAND, MAINE, AND IIOPEDA'LE, MAS- SA OIlUSETlS.

TAKE-UP MECHANISM FOR Looms.

SPECIFICATION forming part of Letters Patent No. 648,903, dated May 1, 1900.

A'pplication filed December 13, 1899. Serial No. 740,151. No mod l.) i

To aZZ whom, it may concern:

Be it known that I, ABRAM D. EMERY, a citi zen of the United States, residing at Taunton,

county of Bristol, State of Massachusetts,

.ing like parts.

is a little slip-back for each tooth,- and the,

take-up of the cloth is not continuous, but is efiected in astep-by-step orintermittentmanner, due to the well-known actionof pawland-ratchet mechanismsr In the present in- .vention the drivingmember of the take-up mechanism is continuously rotated while the loom is in operation, and-by the inclusion of a worm and worm-gear to effect-the rotation of the driving member the-latter, and consequently the take-up roll, will be held against the strain of the warp..

It is necessary in order to weave good cloth to retard or stop the take-up thereof during the slight interval occupied by change of fill-. ing in a loom provided with automatic filling-- supplying mechanismsuch, for instance, as

forms the subject-matter of United States Patent No. 626,187, dated May 30, 1899-and also to prevent take-up when the loom is stopped automatically, and I have herein provided novel means for interrupting the action of'the take-up at such time, It is also desirable to turn the take-up roll forward or back byhand sometimes, and provision has been made for permitting such operation.

Figure 1 is a left-hand side elevation of a portion of a .loom provided with automatic illin g-ehangin g mechanism and withtake-up "nechanism embodying one form of my invention. Fig. 2 is a partial front elevation of the-take-up mechanism. Fig. 3 is an enlarged detail in elevation of the driving and driven member of the take-up mechanism, and Fig. 4 is an enlarged longitudinal sectional view thereof on the line m, Fig. I.

The loom-frame A, breast-beam A camshaft C, filling-detector 1 shown herein as a filling-fork and mounted on a slidef, movable in a guidef attached to the breast-beam, the automatic filling-changing mechanism, a part only of which is herein shownviz., the hopper H, (see Fig. 1,)--and the controlling rock-shaft d are and may be of usual eonstruction inautomatic looms, the con trollingshaft and filling-changing mechanism being substantially as in ,the patent hereinbefore referred to,,the shaft having an upturned arm (1 to be engagedby the slide f when the latter is moved outward, as it will be upon detecting movement of the detector F when the filling is absent, su'ch movement of the arm (I rocking the shaft d in well-known manner and eflieetingeither a change of filling automatically without stopping the loom or changing the filling and at the same time stopping the loom, both operations being well known. The take-up roll T (see Fig. 2) has fast to one of its journals a gear T, in mesh with a gear T driven by a pinion i rotatable with a large gear T, which in turn meshes with a pinion t rotatable with a second large gear T such train of gearing forming no novel part of my invention, the gear T" meshing with the driven member, to be described, of

the take-up mechanism.

A bevel-gear c on the camshaft C of the loom is herein shown as in mesh with a like gear 0, fast on a shaft c-', mounted in suitable bearings'on the loom-frame and extended toward the front of the loom and having fast upon it a worm in mesh with a worm-gear a, loosely mounted on a shaft D, rotatablymounted in a long bearing'D on the front of the loom-frame.' The shaft D is reduced at d and has mounted upon it a recessed coupling member d, having at its inner end teeth or serrations d to normally engage teeth or projections c? on the outer face of the worm gear, (see Fig. 2,) the said coupling member (1 being splined, as at d, (see Fig. 4,) to the reduced portion of the shaft and normally held in operative positionby a spring s the ou-terend of the latter abutting against a collar (1 secured to the shaft by a set-screw 7 It will be seen by reference to Fig. 4; that the spring-receiving recess in the coupling member 61 is of greater diameter than the collar 61 so that by grasping the coupling member the operator may move it tothe left, viewing Fig. 4, tothereby disengage it from theworm-gear so that the shaft D can be rotated relative] y to the said worm-gear. So long, however, as the worm-gear is coupled tofthe shaft'it will be obvious that'while the latter will be rotatedby the worm it cannot.

-member of the take-up mechanism, herein shown as two likedisks DD secured to the shaft by suitable set-screws 9 10, (see Fig. 4,)

the inner faces of the disks being separated and toothed, the series of teeth at on the disk I), which I will term .the follower-disk,

being set behind the teeth 01 on the opposed disk, as will be clear from an inspection of Fig.3, it being noted that thebroken line 3 passes through the point of one of the teeth (Z and midway between the points of two of the teeth of theother setd so that the latter jteeth are set ahead, as itwere, a'dista'nceof one-half tooth ,overthe follower-teeth. The driving member is continuously rotated so long as the loom is running, as will be inani: fest, with a steady evenmotion as compared with the step-by'step movement of a pawl and-ratchet drive, and equallyit will be manifest that there will be no backlashor give of the driving member, 591111813 the device is particularly well adapted for weaving heavy goods, for the take-up roll is actuated through V the train of gears described by said driving member through the mediation of a driven member nowto be, described.

I have herein shown the driven mem her as a pinion E, mounted loosely on the shaft D between the disks DD forming the driving member, and in meslrityith the large gear T of the train, said pinion havifig two annular. flanges E E thereon at its opposite ends and provided on their outer faces with teeth e e respectively, as clearly shown in'Figs. 3 and 4. The extreme distance from the pointsof one set of teeth to the pointsof the other set -.is such that the pinion E maybe shifted latorally to be brought intoengagement with t-he teeth of one or the other of the disks D 'D of the driving member. 4 Normally' the pinion is in the position shown in Fig.2, so

' that the follower-disk D,,. will actuate the take-up mechanism,-a .yokef, fulcrumed at position of the pinion. An armf, fast on or forming part of the yoke, is connected by a link f to an'arm di fast on the controlling or operating shaft d, (see Figs. 1 and 2,) and when said shaft is in normal position the pinion'will be held in operative position, as

shown in Fig. 2. When, however, saidv shaft is rocked, as it will be upon failure ofi the filling, detected by the filling-detector F in the present instance of myinvention, thelink f willbe moved to throw the yoke torjthe left, Fig. 2, and the driven member Ewijlbe disengaged from the toothed followen jdisk D and moved over into engagement with the other or leading disk D Having referonce more particularly to Fig-. 3,' the driven member is in mid-position and traveling to the left, the teeth'd having moved forward in .the direction of arrow 50 a distance equal to-one-half a tooth; but the driven member has not partaken of such rotativemovement at all, but has stopped during such movement vof the driving member and will not be retated while it is moved fully to the left entirely out of engagement with the disk D Now the actuating-shaft d is rocked into operative position to efiect filling change and then backagain into normal position, so that -no sooner will the drivenmember E be moved fully to the left, Fig. 3, than it .will be moved back' again to the rightinto normal position; but as it lost-ad angular, movement equal to one-half a tooth on the first shift it will also lose another space equal to a half-tooth on" inbefore described, and res u med at the proper pick when the loom is again started.

Manifestly the difference between the teeth of the two disks of the driving member'must be such that the loss in rotative movement of the driven-member during the shifting thereofwill interrupt the operation of the take-up mechanism long enough to prevent the formation. of a thin place in the cloth being woven.

ing to'show the various changes or modifications which may be made therein without devention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

f? on a'stand Fl", entering-the annularspace hI-n-a loom provided with automatic fill- I have lherein'described one practical em-- bodiment of my invention without attempt parting from the spirit and'scope of my ining-ch'ang ing mechanism, a filling-detector, a controlling-shaft adapted to be operated by or through said detector upon detecting movement of the latter, take-up mechanism, in-' cludingacontinuously-rotatingdrivingmember, and a normally-cooperating driven member, and means actuated by operation of thecontrolling-shaft to etfect relative movement of the driving and driven members during the operation of the said shaft, whereby take-up of the cloth is interrupted in the act of changing the filling. f v g 2. In a loom provided with automatic filling-changing mechanism, a controlling-shaft adapted to be operated uponffail'ure of the filling, take-Yup mechanism -including normally cooperating rotatable driving and driven members, means actuated by operation of the controlling-shaft to eifect relative zo rotation of the said members, to stop take-up- .of thecloth during the operationof the said shaft, and means to continuouslyrotate the driving member while the loom-is'running.

3. In awloom provided with automatic filling-changing mechanism, an operating-shaft,

and take-up mechanism, including a c0ntin- 'nonsly-rotating driving member,,a normallycooperating driven member, and means controlled by the actuation of the operatingshaft to throw the driven member out of operation during a change of filling and to thereafter return it to operative position, whereby take-up of the cloth is temporarily stopped.

4. In a loom, a filling-fork, a rock-shaft-operated by or through the filling-fork. upon :falilure of filling, and take-up mechanism, in-.

cluding a continuously-rotating driving member,'and a normally=co6perating driven member,vand means governed by the operation of @1 0 the rock-shaft't-o throw the driven member out of action during the operation of the rockshaft, and to thereafter throw the driven member into action. Q I

5. In a loom, take-up mechanism, i'nclnd 5 ing a positively and continuously rotating driving member, a' locking device to prevent retrograde movement thereof at all times, and

a driven member normally cooperating with the driving member, combined with a filling 5o detector, and means controlled by detecting.

movement thereof to prevent cooperation of the driving and driven members during the operation of the filling-detector. Y

6. In a loom, take-up mechanism, includ-v ing a driving. member having two opposed and connected disks toothed on their inner faces, the teeth of one disk being set ahead of the teeth on the other, and a toothed, driven member laterally movable between said disks and normally in engagement with one of them, combined with a filling-detector, and means whereby the driving member willgain upon the driven member andtake-up of the cloth will be stopped at such time.

7. In a loom, take-up mechanism, including two-connected and continuously-rotated driving-disks toothed on theirinner faces, theteeth on one being set ahead'of the teeth on the other disk, and a toothed driven member normally inengagementwith the follower a disk, combined with a filling-detector, and meah's operated by detecting movement ofthe detector to shift the driven member into en: gagemen't with the leading disk, and back into normal position, whereby take-up will be interrupted in accordance with the difierence in the set of the teeth on the driving-disks. 8o

8. In av loom, a take-up roll, meansto rotate the same positively and continuously, 1

said means includinga worm driven by a continuonsly-rotating part of the loom, a mesh- -.=;member, the worm and gear locking the takenpifrom retrogression, combined with a fill- 'ing-detector, and means operative upon'detecting movement thereof to effect rotative movement of the driving member relative to the said driven member, duringthe operation of the filling-detector, whereby. take-up of the cloth is interrupted duringsuch relativemovement. 1 i

In testimony whereof I have signed my nameto this specification in the presence of two'subscribing witnesses;

. 'A'BRAM D.'EMERY.- Witnesses: Y a

- GEORGE OTIS DR PER, 

